diff --git a/src/Yavsc.Abstract/Attributes/Validation/YaStringLength.cs b/src/Yavsc.Abstract/Attributes/Validation/YaStringLength.cs
index 2a80c4e1..5a304b96 100644
--- a/src/Yavsc.Abstract/Attributes/Validation/YaStringLength.cs
+++ b/src/Yavsc.Abstract/Attributes/Validation/YaStringLength.cs
@@ -4,17 +4,16 @@ namespace Yavsc.Attributes.Validation
 {
     public class YaStringLength: YaValidationAttribute
     {
-        public long MinLen { get; set; } = -1;
+        public long MinimumLength { get; set; } = -1;
         private long maxLen;
-        public YaStringLength(long maxLen) : base(
-            ()=>
-                "BadStringLength")
+        public YaStringLength(long maxLen) : base( ()=> "BadStringLength")
         {
             this.maxLen = maxLen;
         }
 
-        private long excedent=0;
-        private long manquant=0;
+        // hugly ... 
+        static long excedent=0;
+        static long manquant=0;
 
         public override bool IsValid(object value) {
             
@@ -24,23 +23,24 @@ namespace Yavsc.Attributes.Validation
             
             string stringValue = value as string;
             if (stringValue==null) return false;
-            if (MinLen>=0) 
+            if (MinimumLength>=0) 
                 {
-                    if (stringValue.Length<MinLen)
-                    {
-                        manquant = MinLen-stringValue.Length;
-                    }
+                    if (stringValue.Length< MinimumLength) 
                     return false;
                 }
             if (maxLen>=0)
                 {
                     if (stringValue.Length>maxLen) {
-                        excedent = stringValue.Length-maxLen;
                         return false;
                     }
                 }
             return true;
         }
+        public override string FormatErrorMessage(string name)
+        {
+            var temp  = base.FormatErrorMessage(name);
+            return string.Format(temp, MinimumLength, maxLen);
+        }
 
     }
 }
\ No newline at end of file
diff --git a/src/Yavsc.Abstract/Attributes/Validation/YaValidationAttribute.cs b/src/Yavsc.Abstract/Attributes/Validation/YaValidationAttribute.cs
index 598c02b5..5e9c8ca4 100644
--- a/src/Yavsc.Abstract/Attributes/Validation/YaValidationAttribute.cs
+++ b/src/Yavsc.Abstract/Attributes/Validation/YaValidationAttribute.cs
@@ -15,18 +15,32 @@ namespace Yavsc.Attributes.Validation
 
         }
 
+        /// <summary>
+        /// Get given string from resources
+        /// specified by ErrorMessageResourceType
+        /// </summary>
+        /// <param name="stringName"></param>
+        /// <returns></returns>
+        public virtual string GetResourceString(string stringName)
+        {
+            var prop = this.ErrorMessageResourceType.GetProperty(stringName);
+            if (prop==null)
+            {
+                return " !e! noprop "+stringName+" in "+ErrorMessageResourceType.Name;
+            }
+            else {
+                return (string) prop.GetValue(null, null);
+            }
+        }
+
         public override string FormatErrorMessage(string name)
         {
             if (ErrorMessageResourceType == null) // failed :/
-                return name;
+                return base.FormatErrorMessage(name);
             if (ErrorMessageResourceName == null) // re failed :/
-                return name;
+                return base.FormatErrorMessage(name);
 
-            var prop = this.ErrorMessageResourceType.GetProperty(ErrorMessageResourceName);
-            if (prop==null) // re re failed :/
-                return "noprop "+ErrorMessageResourceName+" in "+ErrorMessageResourceType.Name;
-            return (string) prop.GetValue(null, null);
-            
+            return GetResourceString(ErrorMessageResourceName);
         }
     }
 }
\ No newline at end of file
diff --git a/src/Yavsc.Server/Models/IT/Fixing/Bug.cs b/src/Yavsc.Server/Models/IT/Fixing/Bug.cs
index 94dd4902..543b1b84 100644
--- a/src/Yavsc.Server/Models/IT/Fixing/Bug.cs
+++ b/src/Yavsc.Server/Models/IT/Fixing/Bug.cs
@@ -15,10 +15,14 @@ namespace Yavsc.Models.IT.Fixing
 
         public long? FeatureId { get; set; }
 
-        [StringLength(240, ErrorMessageResourceType=typeof(Yavsc.Models.IT.Fixing.Bug), ErrorMessageResourceName="TitleTooLong")]
+        [YaStringLength(240, MinimumLength=4 , 
+        ErrorMessageResourceType=typeof(Yavsc.Models.IT.Fixing.Bug), 
+        ErrorMessageResourceName="TitleSizeError")]
         public string Title { get; set; }
 
-        [StringLength(4096)]
+        [YaStringLength(4096, 
+        ErrorMessageResourceType=typeof(Yavsc.Models.IT.Fixing.Bug), 
+        ErrorMessageResourceName="DescSizeError")]
         public string Description { get; set; }
         
         public BugStatus Status { get; set; }
diff --git a/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.Designer.cs b/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.Designer.cs
index 22e5d181..e733a2f3 100644
--- a/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.Designer.cs
+++ b/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.Designer.cs
@@ -1,12 +1,12 @@
-//------------------------------------------------------------------------------
-// <auto-generated>
-//     This code was generated by a tool.
-//     Runtime Version:4.0.30319.42000
-//
-//     Changes to this file may cause incorrect behavior and will be lost if
-//     the code is regenerated.
-// </auto-generated>
-//------------------------------------------------------------------------------
+// ------------------------------------------------------------------------------
+//  <autogenerated>
+//      This code was generated by a tool.
+//      Mono Runtime Version: 4.0.30319.42000
+// 
+//      Changes to this file may cause incorrect behavior and will be lost if 
+//      the code is regenerated.
+//  </autogenerated>
+// ------------------------------------------------------------------------------
 
 namespace Yavsc.Models.IT.Fixing {
     using System;
@@ -43,9 +43,15 @@ namespace Yavsc.Models.IT.Fixing {
             }
         }
         
-        public static string TitleTooLong {
+        public static string TitleSizeError {
             get {
-                return ResourceManager.GetString("TitleTooLong", resourceCulture);
+                return ResourceManager.GetString("TitleSizeError", resourceCulture);
+            }
+        }
+        
+        public static string DescSizeError {
+            get {
+                return ResourceManager.GetString("DescSizeError", resourceCulture);
             }
         }
     }
diff --git a/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.en.resx b/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.en.resx
index e6f65108..3c96d991 100644
--- a/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.en.resx
+++ b/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.en.resx
@@ -58,5 +58,8 @@
   <resheader name="writer">
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
-  <data name="TitleTooLong" comment="bug title validation"><value>The title is too long</value></data>
+ 
+ <data name="TitleSizeError" comment="bug title validation"><value>The title is too long ({0}..{1})</value></data>
+  <data name="DescSizeError" comment="bug title validation"><value>The description field is too long ({0} to {1})</value></data>
+ 
 </root>
\ No newline at end of file
diff --git a/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.fr.resx b/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.fr.resx
deleted file mode 100644
index 3297698d..00000000
--- a/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.fr.resx
+++ /dev/null
@@ -1,65 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
-  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
-    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
-    <xsd:element name="root" msdata:IsDataSet="true">
-      <xsd:complexType>
-        <xsd:choice maxOccurs="unbounded">
-          <xsd:element name="metadata">
-            <xsd:complexType>
-              <xsd:sequence>
-                <xsd:element name="value" type="xsd:string" minOccurs="0" />
-              </xsd:sequence>
-              <xsd:attribute name="name" use="required" type="xsd:string" />
-              <xsd:attribute name="type" type="xsd:string" />
-              <xsd:attribute name="mimetype" type="xsd:string" />
-              <xsd:attribute ref="xml:space" />
-            </xsd:complexType>
-          </xsd:element>
-          <xsd:element name="assembly">
-            <xsd:complexType>
-              <xsd:attribute name="alias" type="xsd:string" />
-              <xsd:attribute name="name" type="xsd:string" />
-            </xsd:complexType>
-          </xsd:element>
-          <xsd:element name="data">
-            <xsd:complexType>
-              <xsd:sequence>
-                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
-                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
-              </xsd:sequence>
-              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
-              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
-              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
-              <xsd:attribute ref="xml:space" />
-            </xsd:complexType>
-          </xsd:element>
-          <xsd:element name="resheader">
-            <xsd:complexType>
-              <xsd:sequence>
-                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
-              </xsd:sequence>
-              <xsd:attribute name="name" type="xsd:string" use="required" />
-            </xsd:complexType>
-          </xsd:element>
-        </xsd:choice>
-      </xsd:complexType>
-    </xsd:element>
-  </xsd:schema>
-  <resheader name="resmimetype">
-    <value>text/microsoft-resx</value>
-  </resheader>
-  <resheader name="version">
-    <value>2.0</value>
-  </resheader>
-  <resheader name="reader">
-    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
-  </resheader>
-  <resheader name="writer">
-    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
-  </resheader>
-  <!-- 
-    route name for the api controller used to tag the 'BlogPost' entity
-   -->
-  <data name="TitleTooLong" comment="validation du titre d'un bug"><value>Le titre est trop long</value></data>
-</root>
\ No newline at end of file
diff --git a/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.resx b/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.resx
index e6f65108..5a567b43 100644
--- a/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.resx
+++ b/src/Yavsc.Server/Resources/Yavsc.Models.IT.Fixing.Bug.resx
@@ -58,5 +58,7 @@
   <resheader name="writer">
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
-  <data name="TitleTooLong" comment="bug title validation"><value>The title is too long</value></data>
+  <data name="TitleSizeError" comment="bug title validation"><value>Le titre est trop court ou trop long (sa taille va de {0} à {1})</value></data>
+  <data name="DescSizeError" comment="bug title validation"><value>Le champ description est trop court ou trop long (sa taille va de {0} à {1})</value></data>
+ 
 </root>
\ No newline at end of file